Ford vs Chevy Build-up - Page 54

HandOverFist · 06-10-2015, 08:59 AM

Not much around this area to choose from. Finding someone with PMS experience is even more rare...forums are all but dead when it comes to this product. Even with the PMS being relatively ancient technology I still should be able to get it to operate given the simple parameters this engine needs. I have the idle/start down...all I need now is WOT sorted out.

jcw31 · 06-10-2015, 09:21 AM

That is why I suggested talking to Ed although I really dont know how his ford exp.is. I really love this build and your persistence and determination . It seems you have enough engine to get the job done. Computer tuning is a skill in itself, a learning curve to say the least, but without a little helpful guidance sometimes we trip over our own feet.

HandOverFist · 06-13-2015, 11:31 PM

Well, another wasted trip to the track. There is definitely something wrong...the third alternator in a row quit working. I'm beginning to suspect something electrical is the root of all my problems now. No way you blow three alternators in a row and there not be something awry.

I'll have to dig up some schematics to find it. The original alternator harness is still intact and supposedly attached correctly to the solenoid. In my mind the solenoid connections just about have to be the problem...something has to be going to ground somewhere to blow all these alternators, don't you agree?

HandOverFist · 06-14-2015, 03:59 PM

Did some checking today and could find nothing obviously wrong with the wiring. I did remove the factory alternator wire from the solenoid...suddenly the one wire alternator is charging again. I don't know the why yet, but it is charging normally now.

jcw31 · 06-14-2015, 07:53 PM

Rich the power for the one wire alt.can come directly from the battery or where the positive cable connects to the solenoid . It doesnt need to come from switched power if thats how it was hooked up.If it stops charging again test the wire and make sure the wire to the alt has 12
+ volts to it.

HandOverFist · 06-14-2015, 08:51 PM

Quote:

Originally Posted by jcw31

Rich the power for the one wire alt.can come directly from the battery or where the positive cable connects to the solenoid . It doesnt need to come from switched power if thats how it was hooked up.If it stops charging again test the wire and make sure the wire to the alt has 12
+ volts to it.

I have 8 gauge wire from the alternator direct to the positive battery post. Something wacky was going on for three alternators in a row to quit charging. Not sure what else is tapped into that green wire from the factory alternator wiring harness to the solenoid or what effect it might have had...that wire is no longer in the mix so we will see.

FireSale · 06-17-2015, 12:11 PM

I finally nailed the alternator issue I had on my 68 with some creative wiring. I'm in NOLA right now and will post some photos Monday. Since this is mostly about EFI which I know zero about, I've been keeping out of this.

EDIT: if your alt is wired directly to your batt pos post or the batt side of your cutoff switch, it may be draining your battery overnight. That happened to me. With your batt cutoff in the OFF position, check voltage at the alternator batt terminal. If it reads zero or near that, your alt is properly isolated from the battery. If it reads voltage, especially 10 volts or more, it's draining your battery.

All of the above is with the motor off and your battery at full charge.

HandOverFist · 06-18-2015, 12:51 AM

Positive post cut-off switch is working properly. It's usually off when the car isnt being used or I have a charger hooked to it. Will keep an eye on it this weekend at the BG Hot Rod Reunion.

jcw31 · 06-18-2015, 06:29 PM

Rich did you ever get the ign. timing figured out?

HandOverFist · 06-19-2015, 10:39 PM

Good news is the alternator continues to charge as it should. Kenny was not allowed to race at BG this weekend due to the car being efi instead of a carburetor...he was however allowed to make passes in the Exhibition class. Only two runs were made due to inclimate weather, but the timeslip showed positive results in the right direction from some slight fuel table adjustments. I'll have to download the data from the last two runs to see if the timing is holding where it should be.

06-10-2015, 08:59 AM	#531
HandOverFist VIP Member Join Date: Oct 2013 Location: Gulf Breeze, FL Posts: 1,651 Likes: 8 Liked 33 Times in 16 Posts	Re: Ford vs Chevy Build-up Not much around this area to choose from. Finding someone with PMS experience is even more rare...forums are all but dead when it comes to this product. Even with the PMS being relatively ancient technology I still should be able to get it to operate given the simple parameters this engine needs. I have the idle/start down...all I need now is WOT sorted out. __________________ Rich Taylor I/SA - 321

06-10-2015, 09:21 AM	#532
jcw31 Junior Member Join Date: Jan 2013 Posts: 94 Likes: 0 Liked 6 Times in 6 Posts	Re: Ford vs Chevy Build-up That is why I suggested talking to Ed although I really dont know how his ford exp.is. I really love this build and your persistence and determination . It seems you have enough engine to get the job done. Computer tuning is a skill in itself, a learning curve to say the least, but without a little helpful guidance sometimes we trip over our own feet.

06-13-2015, 11:31 PM	#533
HandOverFist VIP Member Join Date: Oct 2013 Location: Gulf Breeze, FL Posts: 1,651 Likes: 8 Liked 33 Times in 16 Posts	Re: Ford vs Chevy Build-up Well, another wasted trip to the track. There is definitely something wrong...the third alternator in a row quit working. I'm beginning to suspect something electrical is the root of all my problems now. No way you blow three alternators in a row and there not be something awry. I'll have to dig up some schematics to find it. The original alternator harness is still intact and supposedly attached correctly to the solenoid. In my mind the solenoid connections just about have to be the problem...something has to be going to ground somewhere to blow all these alternators, don't you agree? __________________ Rich Taylor I/SA - 321

06-14-2015, 03:59 PM	#534
HandOverFist VIP Member Join Date: Oct 2013 Location: Gulf Breeze, FL Posts: 1,651 Likes: 8 Liked 33 Times in 16 Posts	Re: Ford vs Chevy Build-up Did some checking today and could find nothing obviously wrong with the wiring. I did remove the factory alternator wire from the solenoid...suddenly the one wire alternator is charging again. I don't know the why yet, but it is charging normally now. __________________ Rich Taylor I/SA - 321

06-14-2015, 07:53 PM	#535
jcw31 Junior Member Join Date: Jan 2013 Posts: 94 Likes: 0 Liked 6 Times in 6 Posts	Re: Ford vs Chevy Build-up Rich the power for the one wire alt.can come directly from the battery or where the positive cable connects to the solenoid . It doesnt need to come from switched power if thats how it was hooked up.If it stops charging again test the wire and make sure the wire to the alt has 12 + volts to it.

06-17-2015, 12:11 PM	#537
FireSale VIP Member Join Date: Feb 2014 Location: Lakewood Washington Posts: 1,407 Likes: 29 Liked 237 Times in 126 Posts	Re: Ford vs Chevy Build-up I finally nailed the alternator issue I had on my 68 with some creative wiring. I'm in NOLA right now and will post some photos Monday. Since this is mostly about EFI which I know zero about, I've been keeping out of this. EDIT: if your alt is wired directly to your batt pos post or the batt side of your cutoff switch, it may be draining your battery overnight. That happened to me. With your batt cutoff in the OFF position, check voltage at the alternator batt terminal. If it reads zero or near that, your alt is properly isolated from the battery. If it reads voltage, especially 10 volts or more, it's draining your battery. All of the above is with the motor off and your battery at full charge. __________________ Dale Shearon 68 Mustang 6394 Last edited by FireSale; 06-17-2015 at 12:40 PM.

06-18-2015, 12:51 AM	#538
HandOverFist VIP Member Join Date: Oct 2013 Location: Gulf Breeze, FL Posts: 1,651 Likes: 8 Liked 33 Times in 16 Posts	Re: Ford vs Chevy Build-up Positive post cut-off switch is working properly. It's usually off when the car isnt being used or I have a charger hooked to it. Will keep an eye on it this weekend at the BG Hot Rod Reunion. __________________ Rich Taylor I/SA - 321

06-18-2015, 06:29 PM	#539
jcw31 Junior Member Join Date: Jan 2013 Posts: 94 Likes: 0 Liked 6 Times in 6 Posts	Re: Ford vs Chevy Build-up Rich did you ever get the ign. timing figured out?

06-19-2015, 10:39 PM	#540
HandOverFist VIP Member Join Date: Oct 2013 Location: Gulf Breeze, FL Posts: 1,651 Likes: 8 Liked 33 Times in 16 Posts	Re: Ford vs Chevy Build-up Good news is the alternator continues to charge as it should. Kenny was not allowed to race at BG this weekend due to the car being efi instead of a carburetor...he was however allowed to make passes in the Exhibition class. Only two runs were made due to inclimate weather, but the timeslip showed positive results in the right direction from some slight fuel table adjustments. I'll have to download the data from the last two runs to see if the timing is holding where it should be. __________________ Rich Taylor I/SA - 321